Don’t judge him by his size. Actually…go ahead. We dare you. At 5’ 3” and 125lbs, Demetrious “Mighty Mouse” Johnson is one of the UFC’s greatest fighters of all time. However, strangely enough, this super athlete still has time for hobbies. With over 100,000 followers on the video game streaming platform Twitch, Demetrious Johnson aspires to one day become an eSports competitor – after he’s done with his hall-of-fame UFC career, that is.